When assessing quality, what is NOT a category used?

The category "consistent" is not used when assessing quality. This is because "consistent" refers to something being the same or remaining unchanged over time, which is one of the key elements of quality. Therefore, it does not make sense to use "consistent" as a category when evaluating the quality of something. Instead, the categories used would be those that identify specific aspects related to quality, such as adequacy, adverse impact, and routine performance.